Ingredient review
Fragrance Allergen Marker
INCI: F.I.L. b160303/5
This is a regulatory code for a fragrance allergen, not a standalone cosmetic ingredient—it signals potential sensitization risk for sensitive individuals.
In plain English
This is a code used by regulators to track fragrance allergens in products. It doesn't describe a single ingredient but rather a marker that a specific fragrance compound is present. For everyday users, it means the product contains a known potential allergen, which could cause irritation or allergic reactions in some people, especially those with sensitive skin or fragrance allergies.
Review score
Safety, usefulness, and evidence
Higher-caution ingredient
The evidence base is useful, but some claims depend heavily on the formula.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Read the cautions before using
Fragrance Allergen Marker can be useful, but watch for some irritation potential.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Fragrance Allergen Marker.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A regulatory code (Fragrance Ingredient List) assigned by the EU or other authorities to identify a specific fragrance allergen compound in cosmetic products.
How it works
In a cosmetic product, this code indicates the presence of a fragrance allergen that must be listed on the label per regulations. It doesn't have a functional role like moisturizing or cleansing; it's purely a labeling requirement to inform consumers of potential allergens.
Pros
Regulatory transparency
Helps consumers identify potential allergens in products, promoting informed choices.
Standardized labeling
Ensures consistent allergen disclosure across brands, making it easier to compare products.
Cons and cautions
No skincare benefit
This code represents a potential allergen, not an active ingredient that improves skin health.
Irritation risk
Can trigger contact dermatitis or allergic reactions in sensitive individuals, especially with repeated use.
Best for
- Consumers who want to be aware of fragrance allergens
- People without fragrance sensitivities who enjoy scented products
Use caution if
- Individuals with known fragrance allergies or sensitive skin
- Those seeking fragrance-free skincare
Usage tips
Safety summary
Generally safe for most people at low concentrations, but can cause allergic reactions in sensitive individuals. Regulatory limits help minimize risk.
Research notes
Fragrance allergens are well-studied for their sensitization potential, with established thresholds for labeling. Research supports their role in contact dermatitis.
Common label clues
- Typical concentration
- Trace amounts, often below 0.01%
- Regulatory status
- Required to be listed on cosmetic labels in the EU and UK when present above certain thresholds (0.001% in leave-on products, 0.01% in rinse-off).
- Common uses
- Fragranced products, Labeling compliance
- Environmental note
- Fragrance allergens are often synthetic and may persist in the environment, but their impact varies by compound.
Good to know
- This code is part of the EU CosIng database and is not a single ingredient but a marker for a specific allergen.
- Fragrance allergens are required to be listed on labels in many regions, including the EU and UK.
Common questions
What is Fragrance Allergen Marker in beauty products?
This is a code used by regulators to track fragrance allergens in products. It doesn't describe a single ingredient but rather a marker that a specific fragrance compound is present. For everyday users, it means the product contains a known potential allergen, which could cause irritation or allergic reactions in some people, especially those with sensitive skin or fragrance allergies.
What does Fragrance Allergen Marker do in a beauty product?
In a cosmetic product, this code indicates the presence of a fragrance allergen that must be listed on the label per regulations. It doesn't have a functional role like moisturizing or cleansing; it's purely a labeling requirement to inform consumers of potential allergens.
Is Fragrance Allergen Marker safe for most people?
Generally safe for most people at low concentrations, but can cause allergic reactions in sensitive individuals. Regulatory limits help minimize risk.
Who should be careful with Fragrance Allergen Marker?
Individuals with known fragrance allergies or sensitive skin Those seeking fragrance-free skincare
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.